In this Letter, the aperture efficiency of a folded reflectarray is improved using a proposed element. This element is designed with a simple structure using a rectangle and split-ring combined structure to obtain a more accurate reflection phase for the folded reflectarray than that of a conventional element in the millimetre wave frequency. Thus, a high aperture efficiency of 55.04% is obtained at 77 GHz. The element design concept and procedure are presented in detail.
Bibliographical noteFunding Information:
Acknowledgments: This research was supported by the MSIT (Ministry of Science, ICT), Korea, under the ITRC (Information Technology Research Center) support program (IITP-2018-2014-1-00729) supervised by the IITP (Institute for Information & Communications Technology Promotion) © The Institution of Engineering and Technology 2018 Submitted: 9 April 2018 E-first: 22 May 2018 doi: 10.1049/el.2018.1194 One or more of the Figures in this Letter are available in colour online. J.G. Jeong, N.J. Park and Y.J. Yoon (Department of Electrical and Electronic Engineering, Yonsei University, Seoul, Republic of Korea) ✉ E-mail: firstname.lastname@example.org
© The Institution of Engineering and Technology 2018.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering